A home extension can increase the size and value of your property, but before you get started, find out here whether you need planning permission.
Home extensions have become popular in recent years as the cost of moving house has taken its toll on cash-strapped homeowners. Opting for an extension instead of moving is cheaper, less disruptive and will add value and space to your property.
Before you get started planning your home extension, find out whether you need to apply for planning permission. As of October 2008 extensions became permitted developments, which means you don’t need permission to build one; however this may not apply to you if you live in:
Ø A conservation area
Ø Listed building
Ø National park
Ø World heritage site
Ø Area of outstanding natural beauty
If any of the above applies to your property, contact your local building authority to find out whether your home extension requires planning permission. Planning applications cost around £150 in England and can take up to eight weeks to process. If you don’t need planning permission you are free to start building, so long as you adhere to the following guidelines:
Ø Building materials should be similar to those used in the existing property.
Ø Balconies, verandas or raised platforms are not permitted.
Ø You should not extend over more than 50% of the size of your original property.
Ø The extension, which includes eaves and ridge height, should not be taller than your existing roof.
Ø You are not permitted to extend more than three metres beyond the rear wall of an attached house or more than four metres of a detached property.
Ø The extension should not extend forward of the principle elevation or side elevation fronting a highway.
Single storey extensions
Ø Should not be any higher than four metres.
Ø Side extensions should have a maximum height of four metres and no more than half that or the original house.
Multiple storey extensions
Ø Roof pitch should match your existing roof.
Ø The extension should be no closer than seven metres to a rear boundary.
Ø Maximum depth of a rear extension is three metres beyond the rear wall.
If your extension is within three metres of another house or involves shared walls, you will need to get your neighbour’s permission for the work to begin under the Party Wall Act 1996. If you are in any doubt about whether your extension requires planning permission, consult a home extension professional who can provide free quotes and offer advice.
